package com.lzl.artisan.handler;

import com.alibaba.fastjson.JSON;
import com.lzl.artisan.model.Result;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.authentication.AuthenticationFailureHandler;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

@Component
public class LoginFailureHandler implements AuthenticationFailureHandler {
   @Override
   public void onAuthenticationFailure(HttpServletRequest request, HttpServletResponse response, AuthenticationException exception) throws IOException, ServletException, IOException {
      response.setContentType("application/json;charset=UTF-8");
      ServletOutputStream outputStream = response.getOutputStream();
      Result fail = Result.fail("Bad credentials".equals(exception.getMessage()) ? "用户名或密码不正确" : exception.getMessage());
      outputStream.write(JSON.toJSONString(fail).getBytes(StandardCharsets.UTF_8));
      outputStream.flush();
      outputStream.close();
   }
}